$F30F/62223:   Find File

Jump from $F20E, $F250, $F351:

F30F: A9 00     LDA #$00
F311: 85 90     STA $90       ; Kernal I/O Status Word ST
F313: 8A        TXA

Jump from $F291:

F314: A6 98     LDX $98       ; Number of Open Files/Index to File Table

Jump from $F31C:

F316: CA        DEX
F317: 30 15     BMI $F32E     ; Set File values
F319: DD 59 02  CMP $0259,X   ; Active logical File numbers
F31C: D0 F8     BNE $F316
F31E: 60        RTS

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